CA2077490C - Integrity-testable wet-dry-reversible ultra-filtration membranes and method for testing same - Google Patents
Integrity-testable wet-dry-reversible ultra-filtration membranes and method for testing sameInfo
- Publication number
- CA2077490C CA2077490C CA002077490A CA2077490A CA2077490C CA 2077490 C CA2077490 C CA 2077490C CA 002077490 A CA002077490 A CA 002077490A CA 2077490 A CA2077490 A CA 2077490A CA 2077490 C CA2077490 C CA 2077490C
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- liquid
- membranes
- solution
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 272
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000012360 testing method Methods 0.000 title claims description 54
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 239000012530 fluid Substances 0.000 claims abstract description 70
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910001868 water Inorganic materials 0.000 claims abstract description 48
- 238000009736 wetting Methods 0.000 claims abstract description 48
- 239000004816 latex Substances 0.000 claims abstract description 42
- 229920000126 latex Polymers 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 34
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims description 68
- 239000002904 solvent Substances 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 238000005266 casting Methods 0.000 claims description 27
- 230000001965 increasing effect Effects 0.000 claims description 18
- 229920006393 polyether sulfone Polymers 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000004695 Polyether sulfone Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 108090000623 proteins and genes Proteins 0.000 claims description 7
- 229920002492 poly(sulfone) Polymers 0.000 claims description 6
- 102000004169 proteins and genes Human genes 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 6
- 239000007863 gel particle Substances 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 4
- 229920000491 Polyphenylsulfone Polymers 0.000 claims description 3
- 241000700605 Viruses Species 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 claims description 2
- 239000008280 blood Substances 0.000 claims description 2
- 239000002952 polymeric resin Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000012503 blood component Substances 0.000 claims 1
- 238000011026 diafiltration Methods 0.000 abstract description 9
- 210000004379 membrane Anatomy 0.000 description 224
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 38
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 description 20
- 235000019260 propionic acid Nutrition 0.000 description 19
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 19
- 230000007547 defect Effects 0.000 description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- 239000012071 phase Substances 0.000 description 12
- 238000010998 test method Methods 0.000 description 11
- 239000003906 humectant Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000001879 gelation Methods 0.000 description 8
- 238000001471 micro-filtration Methods 0.000 description 8
- 229920001213 Polysorbate 20 Polymers 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 230000007717 exclusion Effects 0.000 description 7
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 7
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 7
- 239000012529 ultrafiltration/diafiltration (UF/DF) membrane Substances 0.000 description 7
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000012510 hollow fiber Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- BTANRVKWQNVYAZ-SCSAIBSYSA-N (2R)-butan-2-ol Chemical compound CC[C@@H](C)O BTANRVKWQNVYAZ-SCSAIBSYSA-N 0.000 description 3
- -1 Arylsulphonyl Chlorides Chemical class 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000013060 ultrafiltration and diafiltration Methods 0.000 description 3
- FEWLNYSYJNLUOO-UHFFFAOYSA-N 1-Piperidinecarboxaldehyde Chemical compound O=CN1CCCCC1 FEWLNYSYJNLUOO-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- GSNUFIFRDBKVIE-UHFFFAOYSA-N DMF Natural products CC1=CC=C(C)O1 GSNUFIFRDBKVIE-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- AHVYPIQETPWLSZ-UHFFFAOYSA-N N-methyl-pyrrolidine Natural products CN1CC=CC1 AHVYPIQETPWLSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003295 Radel® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229920004695 VICTREX™ PEEK Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011016 integrity testing Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000090 poly(aryl ether) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000008279 sol Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
- B01D65/102—Detection of leaks in membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/082—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/086—Investigating permeability, pore-volume, or surface area of porous materials of films, membranes or pellicules
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/882,473 US5480554A (en) | 1992-05-13 | 1992-05-13 | Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
| US07/882,473 | 1992-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2077490A1 CA2077490A1 (en) | 1993-11-14 |
| CA2077490C true CA2077490C (en) | 1997-12-16 |
Family
ID=25380649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002077490A Expired - Fee Related CA2077490C (en) | 1992-05-13 | 1992-09-03 | Integrity-testable wet-dry-reversible ultra-filtration membranes and method for testing same |
Country Status (10)
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762798A (en) * | 1991-04-12 | 1998-06-09 | Minntech Corporation | Hollow fiber membranes and method of manufacture |
| US5480554A (en) * | 1992-05-13 | 1996-01-02 | Pall Corporation | Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
| US5788862A (en) * | 1992-05-13 | 1998-08-04 | Pall Corporation | Filtration medium |
| US5282380A (en) * | 1992-06-30 | 1994-02-01 | Millipore Corporation | Integrity test for membranes |
| USRE36914E (en) * | 1992-10-07 | 2000-10-17 | Minntech Corp | Dialysate filter including an asymmetric microporous, hollow fiber membrane incorporating a polyimide |
| US5543047A (en) | 1992-11-06 | 1996-08-06 | Pall Corporation | Filter with over-laid pleats in intimate contact |
| CA2128296A1 (en) * | 1993-12-22 | 1995-06-23 | Peter John Degen | Polyvinylidene fluoride membrane |
| AU3815795A (en) * | 1994-11-09 | 1996-06-06 | Mitsubishi Rayon Company Limited | Hollow-filament plasma-filtering membrane and plasma-filtering module |
| US5885456A (en) * | 1996-08-09 | 1999-03-23 | Millipore Corporation | Polysulfone copolymer membranes and process |
| US6257048B1 (en) | 1998-06-22 | 2001-07-10 | The United States Of America As Represented By The United States Department Of Energy | Method and apparatus for measuring surface changes, in porous materials, using multiple differently-configured acoustic sensors |
| US6264809B1 (en) | 1998-10-30 | 2001-07-24 | Pti Advanced Filtration, Inc. | Enhanced membrane electrode devices useful for electrodeposition coating |
| ES2202081T3 (es) | 1999-02-26 | 2004-04-01 | United States Filter Corporation | Metodo y aparato para evaluar una membrana. |
| UA72503C2 (uk) * | 1999-04-04 | 2005-03-15 | Сода Клаб (Со2) Са | Система та спосіб випробування цілісності фільтра і система водоочищення (варіанти) |
| US6350385B1 (en) | 2000-12-22 | 2002-02-26 | William Holt | Method and apparatus for controlling water system fouling |
| US6719147B2 (en) | 2001-04-27 | 2004-04-13 | The University Of Delaware | Supported mesoporous carbon ultrafiltration membrane and process for making the same |
| DE10129693A1 (de) * | 2001-06-22 | 2003-01-02 | Jan Loock | Verfahren zur extrakorporalen qualitativen und/oder quantitativen Erfassung neurotoxischer Substanzen im Blutplasma eines Individuums |
| US20050139545A1 (en) * | 2002-03-12 | 2005-06-30 | Rensselaer Polytechnic , A New York Corporation, | Photo-processing and cleaning of pes and psf membranes |
| DE10227160B4 (de) * | 2002-06-18 | 2007-09-27 | Sartorius Biotech Gmbh | Verfahren zur Durchführung eines Integritätstests von Filterelementen |
| JP2007301415A (ja) * | 2004-03-03 | 2007-11-22 | Asahi Kasei Pharma Kk | 多孔性分離膜の孔径測定法及び完全性試験方法 |
| US7246515B2 (en) * | 2005-03-15 | 2007-07-24 | Hewlett-Packard Development Company, L.P. | Filtration tester |
| US7641055B2 (en) * | 2005-11-10 | 2010-01-05 | Donaldson Company, Inc. | Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy |
| US8215496B2 (en) * | 2008-01-28 | 2012-07-10 | Promerus Llc | Polynorbornene pervaporation membrane films, preparation and use thereof |
| US8991235B2 (en) * | 2009-05-07 | 2015-03-31 | Dow Global Technologies Llc | Method of testing membranes and membrane-based systems |
| CN101762561B (zh) * | 2009-11-10 | 2012-06-06 | 浙江天元生物药业有限公司 | 一种采用紫外监测法在线检测超滤膜完整性的方法 |
| CN102068920A (zh) * | 2010-11-29 | 2011-05-25 | 天津市宝钜净化设备工程有限公司 | 非对称聚氯乙烯干湿可逆超/微滤膜及制备方法和应用 |
| WO2012147850A1 (ja) * | 2011-04-28 | 2012-11-01 | 三菱レイヨン株式会社 | 多孔質中空糸膜モジュールの完全性試験方法と試験装置 |
| CN102430340B (zh) * | 2011-11-15 | 2013-09-18 | 天津瑞普生物技术股份有限公司 | 一种超滤膜膜包的完整性检测方法 |
| NZ708504A (en) * | 2012-12-27 | 2017-12-22 | Medi-Physics Inc | Dual-filter dual-integrity test assembly |
| US10898865B2 (en) * | 2013-01-31 | 2021-01-26 | American University In Cairo (AUC) | Polymer-carbon nanotube nanocomposite porous membranes |
| CN105636677B (zh) * | 2013-10-15 | 2019-03-12 | 巴斯夫欧洲公司 | 改进过滤膜的化学稳定性 |
| US9751053B2 (en) * | 2014-09-26 | 2017-09-05 | Uop Llc | Asymmetric integrally-skinned flat sheet membranes for H2 purification and natural gas upgrading |
| MX373147B (es) * | 2014-12-30 | 2020-04-21 | Emd Millipore Corp | Puerto y válvula asépticos de ventilación de filtro para prueba de integridad. |
| US10702832B2 (en) | 2015-11-20 | 2020-07-07 | Emd Millipore Corporation | Enhanced stability filter integrity test |
| PL3405400T3 (pl) | 2016-01-22 | 2020-07-27 | Baxter International Inc. | Sposób i maszyna do wytwarzania woreczków z produktem sterylnego roztworu |
| TR201809267T2 (tr) | 2016-01-22 | 2018-08-27 | Baxter Healthcare Sa | Steril solüsyon ürün torbası. |
| JP7089356B2 (ja) * | 2017-11-15 | 2022-06-22 | 住友化学株式会社 | 酸性ガス分離膜シートの製造方法及び製造装置 |
| KR102397127B1 (ko) * | 2018-01-24 | 2022-05-12 | 키타가와고우교가부시끼가이샤 | 역침투막 및 역침투막의 제조 방법 |
| CN109297857A (zh) * | 2018-11-01 | 2019-02-01 | 迈博瑞生物膜技术（南通）有限公司 | 便于存放的手动加压测试针头滤器泡点值的装置及方法 |
| CN111141658A (zh) * | 2020-03-02 | 2020-05-12 | 贝士德仪器科技(北京)有限公司 | 采用液液驱替技术测试滤膜孔径的方法及装置 |
| CN117129401B (zh) * | 2023-09-01 | 2025-01-28 | 江西三鑫医疗科技股份有限公司 | 一种血液透析类中空纤维膜孔径分布的测试方法 |
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-
1992
- 1992-05-13 US US07/882,473 patent/US5480554A/en not_active Expired - Lifetime
- 1992-09-03 CA CA002077490A patent/CA2077490C/en not_active Expired - Fee Related
-
1993
- 1993-03-02 TW TW082101525A patent/TW272139B/zh active
- 1993-04-22 GB GB9308385A patent/GB2266851B/en not_active Expired - Lifetime
- 1993-04-23 IT ITTO930280A patent/IT1260658B/it active IP Right Grant
- 1993-04-28 FR FR9305036A patent/FR2691077B1/fr not_active Expired - Lifetime
- 1993-04-30 SE SE9301492A patent/SE511394C2/sv unknown
- 1993-05-11 DE DE4315718A patent/DE4315718B4/de not_active Expired - Lifetime
- 1993-05-13 CN CN93105654.3A patent/CN1050768C/zh not_active Expired - Fee Related
- 1993-05-13 JP JP5111825A patent/JP2747194B2/ja not_active Expired - Fee Related
-
1995
- 1995-10-12 US US08/542,293 patent/US5685991A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SE511394C2 (sv) | 1999-09-20 |
| DE4315718A1 (de) | 1993-11-18 |
| SE9301492D0 (sv) | 1993-04-30 |
| FR2691077B1 (fr) | 1994-12-30 |
| GB2266851A (en) | 1993-11-17 |
| ITTO930280A0 (it) | 1993-04-23 |
| CA2077490A1 (en) | 1993-11-14 |
| GB9308385D0 (en) | 1993-06-09 |
| GB2266851B (en) | 1996-09-25 |
| US5685991A (en) | 1997-11-11 |
| JP2747194B2 (ja) | 1998-05-06 |
| IT1260658B (it) | 1996-04-22 |
| FR2691077A1 (fr) | 1993-11-19 |
| CN1078661A (zh) | 1993-11-24 |
| DE4315718B4 (de) | 2008-09-11 |
| TW272139B (enrdf_load_html_response) | 1996-03-11 |
| ITTO930280A1 (it) | 1994-10-23 |
| JPH0679149A (ja) | 1994-03-22 |
| SE9301492L (sv) | 1993-11-14 |
| CN1050768C (zh) | 2000-03-29 |
| US5480554A (en) | 1996-01-02 |
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